Go to control panel->sound->recording
Right click the microphone that is used and select Properties ==> Enhancements. Select "Disable microphone effects" and press ok to save. Restart the proximity app.
If this does not work try the same, only with...
did you try different laptop ?
we need other laptop which is not Dell at all if possible as there's some limitation found in Dell Latitude laptop
for example "Dell Latitude 5285"
Dell engineering c...